[Cronet] Add error code and immediatelyRetryable() to UrlRequestException

components/cronet/android/api/src/org/chromium/net/BidirectionalStream.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.net;
 
 import android.support.annotation.IntDef;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ skipping 243 matching lines @@
          * methods will be invoked.
          *
          * @param stream the stream which is closed successfully
          * @param info the response information
          */
         public abstract void onSucceeded(BidirectionalStream stream, UrlResponseInfo info);
 
         /**
          * Invoked if the stream failed for any reason after {@link BidirectionalStream#start}.
          * <a href="https://tools.ietf.org/html/rfc7540#section-7">HTTP/2 error codes</a> are
-         * mapped to {@link CronetException#netError} codes. Once invoked, no further
-         * {@link BidirectionalStream.Callback} methods will be invoked.
+         * mapped to {@link UrlRequestException#getCronetInternalErrorCode} codes. Once invoked,
+         * no further {@link BidirectionalStream.Callback} methods will be invoked.
          *
          * @param stream the stream which has failed
          * @param info the response information. May be {@code null} if no response was
          *     received.
          * @param error information about the failure
          */
         public abstract void onFailed(
                 BidirectionalStream stream, UrlResponseInfo info, CronetException error);
 
         /**
@@ skipping 122 matching lines @@
     /**
      * Returns {@code true} if the stream was successfully started and is now
      * done (succeeded, canceled, or failed).
      *
      * @return {@code true} if the stream was successfully started and is now
      *         done (completed, canceled, or failed), otherwise returns {@code false}
      *         to indicate stream is not yet started or is in progress.
      */
     public abstract boolean isDone();
 }